2 files changed, 30 insertions, 1 deletions

diff --git a/flakes/paste/flake.nix b/flakes/paste/flake.nix
index 08d0681..97e31c8 100644
--- a/flakes/paste/flake.nix
+++ b/flakes/paste/flake.nix
@@ -45,6 +45,8 @@
         let
           cfg = config.services.paste;
         in {
+          # Necessary for situations where flake gets included multiple times
+          key = builtins.hashString "sha256" (builtins.path { path = self.sourceInfo.outPath; name = "source"; });
           options = {
             services.paste = {
               enable = lib.mkOption {
diff --git a/flakes/paste/paste/paste.py b/flakes/paste/paste/paste.py
index 86666b8..3172de5 100644
--- a/flakes/paste/paste/paste.py
+++ b/flakes/paste/paste/paste.py
@@ -10,9 +10,32 @@ import mimetypes
 
 magic = magic.Magic(mime=True)
 
+mit_license = """
+Copyright (c) 2022 Immae
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+"""
+
 config = {
         "directory": os.environ["PASTE_DIRECTORY"],
         "self_paste_id": "abcd123",
+        "license_paste_id": "license",
         "max_content_length": 16 * 1000 * 1000
         }
 
@@ -33,6 +56,8 @@ def read_paste(paste_id):
         if mime.startswith("text/x-script."):
             mime="text/plain"
         return (content, mime)
+    elif paste_id == config["license_paste_id"]:
+        return (mit_license, "text/plain")
     else:
         abort(404)
 
@@ -69,9 +94,11 @@ $ curl -X POST --data-binary @{self} {host}
 -> GET {paste}/download
    force download of file
 </pre>
-<a href="{paste}/py">Get the source</a>
+<a href="{paste}/py">Get the source</a><br />
+Software licensed under the terms of the <a href="{host}/license">MIT license</a>
 '''.format(host=url_for('post_paste', _external=True, _scheme="https"),
                  paste=url_for('get_paste', _external=True, _scheme="https", paste_id=config["self_paste_id"]),
+                 license=url_for('get_paste', _external=True, _scheme="https", paste_id=config["license_paste_id"]),
                  self=os.path.basename(__file__)
                  ), mimetype="text/html")